title: Morphological studies of ossification of the posterior longitudinal ligament by computed tomography.
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D008022:Ligaments; D008297:Male; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging*; D013122:Spinal Diseases / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed